solar power by molten salt technology

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SOLAR POWER GENERATION SOLAR POWER GENERATION BY BY MOLTENMOLTEN SALT SALT TECHNOLOGYTECHNOLOGY

BY

K.MADHU SUDHAN C.RAJESH 09X51A0220 09X51AO239 III-B.TECH III-B.TECH EEE EEE

AGENDAAGENDA

INTRODUCTION WHAT IS MOLTEN SALT TECHNOLOGY? FUNCTIONAL MODEL OF MOLTEN SALT

SYSTEM COMPARE TO OTHER SOURCES WHY WE GO

FOR THIS TECHNOLOGY? ECO-FRIENDLY NATURE IMPLEMENTATION IN INDIA CONCLUSION

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INTRODUCTIONINTRODUCTION Energy is major input for overall socio-economic development of any society.

Coal,gas and oil will not be three kings of the world forever.

So we develop renewable sources as replacement, at present Solar energy is the fast growing renewable.

Molten salt technology based solar plant is better replacement .

This Technology is cheaper,economical and eco-friendly compare to all other.

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WHAT IS MOLTEN WHAT IS MOLTEN SALT SALT ??

Molten salt generally Refers Melted salt.

This fluid(salt-water) have good heat capacity.

We can attain red heat (>801°c ).

Easy phase chngining capability.

Mixture of sodium nitrate and potassium nitrate presently used as molten salt in commercial plants.

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FUNCTIONAL MODELFUNCTIONAL MODEL

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MOLTEN SALT SYSTEMMOLTEN SALT SYSTEM

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MOLTEN SALT SYSTEMMOLTEN SALT SYSTEM

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Mixture of nitrate salts heated in tubes up to 565°c Returns to hot storage tank.

Hot salt fluid pumped for generating purposes.

The salt at 265°c returns to cold storage tanks used in Rankin cycle again.

Tubes in receiver designed to Absorbs 95% of the incidence of sun light.

Total molten salt loop designed <2500 feet which is heat traced to prevent freezing.

COMPARE TO OTHERCOMPARE TO OTHEROTHER STORAGE MEDIUMS: Stone is lot cheaper, but ability to store the heat is less.

Graphite and ceramic are more expensive mediums.

PV panels are presently used in commercial plants are relatively high cost.

Using of PV panels increases capital cost of plant.

For those reasons we adopt molten salt system.

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COMPARE TO OTHERCOMPARE TO OTHER

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ENERGY STORAGE & OUTPUT IN THE DAY OF MOLTEN SALT SYSTEM

COST AND ECONOMICAL BASIS:

Primary advantage of this system is we can attain 98%

of thermal efficiency.

For identical scale generation(800MWht)will cost around

US$44/KWht.

This is cheap compare to all other Storage Mediums.

The latest progress in this systems is we can capture

1MWht of thermal energy(largest).

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COMPARECOMPARE TO OTHER

ECO-FRIENDLY NATUREECO-FRIENDLY NATURE

Molten salt is non-toxic, non-flammable energy

storage medium.

We can reduce atmospheric CO2 Emissions by more

30,000 tons for 110GWH/year power generation.

We can also increase plant efficiency 1.5 to 3 times

compare to other renewable Eco-friendly.

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Gema solar plant in Spain is the first commercial

plant using this technology.

IMPLEMENTATION IN INDIAIMPLEMENTATION IN INDIA

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SOLAR RESOURCE MAP IN INDIA

IMPLEMENTATION IN INDIAIMPLEMENTATION IN INDIA

Presently India gets 65% Of it’s energy from thermal plants and <1% from solar energy. Day to day increasing cost of coal it is burden to the electric sector. With the use of this technology in solar plants burden on

electric sector should be reduced.

Main problem in India is Governments are lack of interest to develop this type of alternatives.

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CONCLUSIONCONCLUSION

As our demand for electrical power grows, it becomes increasingly urgent to find new alternatives. In the past, the limiting factors of renewable energy have been the storage and transport of that energy.

In spite of above advantages molten salt based solar plants are better alternative at present.

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Queries ? ?

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THANK YOU

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